/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package lintulaskenta.servlet.reitti;

import java.io.IOException;
import java.util.List;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import lintulaskenta.entity.Reitti;
import lintulaskenta.rekisteri.Rekisteri;

/**
 *
 * @author Anna
 */

// Alustaa lomakkeen uuden reitin lisäystä varten.
public class UusiReittiServlet extends HttpServlet {
    
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        // Generoidaan vanhaReittiNumero
        Rekisteri rekisteri = new Rekisteri();
        List<Long> tulos = rekisteri.getResultList("select max(r.vanhaReittiNumero) from Reitti r", Reitti.class);
        long numero = 0;        
        if (tulos.get(0) != null) {
            numero = tulos.get(0) + 1;
        } else {
            numero = 1;
        }
        
        Reitti r = new Reitti();
        r.setVanhaReittiNumero(numero);
        r.setPisteidenLkm(20);
        request.getSession().setAttribute("reitti", r);
        RequestDispatcher dispatcher = request.getRequestDispatcher("uusireitti.jsp");
        dispatcher.forward(request, response);
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
